wd946-ez300-00009 procedure for painting rev 0
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● PROJECT CODE Purpose
: SISTEMA DESULFURIZACION DE GASES DE
● PACKAGE NAM : SEMI DRY FGD SYSTEM For Approval
● DOCUMENT No. : WD946-EZ300-00009 For Construction
: ENDESA S.A. For Information
PREP REVIEW APPR REVIEW REVIEW APPR
Contractor:
Procedure for PaintingTOTAL 21 PAGES
(Including Cover)
● PROJECT NAME
ESCAPE PARA LA UNIDAD 1 CENTRAL BOCAMINA For Review
● TITLE For Bid
● OWNER
: Procedure for Painting
0 H.J Cho For Construction
Owner:
Rev.
No.DATE DESCRIPTION
STX Heavy Industries ENDESA S.A.
2013-02-15 J.W Kim D.M. Choi
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Contents
1.
SCOPE ..................................................................................................................................... 2
2.
GENERALS ............................................................................................................................. 2
3.
CODES AND STANDARDS .................................................................................................... 2
3.1.
Steel Structure Painting Council (SSPC) ................................................................................. 2
3.2.
ISO 12944 ................................................................................................................................ 2
4.
APPLICATION ......................................................................................................................... 2
4.1.
Surface to be painted. .............................................................................................................. 2
4.2.
Surface not to be painted ......................................................................................................... 3
4.3.
Surface Preparation ................................................................................................................. 3
4.4.
Painting..................................................................................................................................... 4
4.5.
Protection of Stainless Steel .................................................................................................... 6
4.6.
Galvanizing ............................................................................................................................... 6
4.7.
Touch-up Painting ..................................................................................................................... 7
5.
TESTING & INSPECTION ....................................................................................................... 8
6.
STORAGE OF PAINTS .......................................................................................................... 10
7.
SAFETY ................................................................................................................................. 10
8.
COATING SYSTEM ................................................................................................................11
8.1.
Application of Materials ........................................................................................................... 11
8.2.
Painting System ...................................................................................................................... 11
8.3.
Safety Color Code .................................................................................................................. 15
8.4.
Final Painting .......................................................................................................................... 15
8.5.
Piping Color Code .................................................................................................................. 17
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1. SCOPE
This procedure covers the surfaces preparation and application of protective coating forSISTEMA DESULFURIZACION DE GASES DE ESCAPE PARA LA UNIDAD 1 CENTRAL
BOCAMINA.
2. GENERALS
1) All regulations including storage of paint, handling, surface preparation, painting work,
safety, etc, shall be in compliance with KS, SSPC and paint manufacturer’s specifications.
2) All painting procedures shall be in compliance with the requirements of SSPC-PA1, this
technical specification and the manufacturer’s recommendations.
3. CODES AND STANDARDS
Codes and standards not specified hereafter shall be in compliance with Korean industrial
Standard. The others shall comply with following SSPC standard.
3.1. Steel Structure Painting Council (SSPC)
1) SSPC-PA1 : Shop, field and Maintenance Painting
2) SSPC-PA2 : Measurement of Dry Film Thickness with Magnetic Gages
3) SSPC-PA Guide 3 : A Guide to Safety in Paint Application
4) SSPC-SP1 : Sol vent Cleaning
5) SSPC-SP2 : Hand Tool Cleaning
6) SSPC-SP3 : Power Tool Cleaning
7) SSPC-SP5 : White Metal Blast Cleaning
8) SSPC-SP6 : Commercial Blast Cleaning
9) SSPC-SP8 : Pickling
10) SSPC-SP10 : Near-White Blast Cleaning
3.2. ISO 12944
Paints and varnishes - Corrosion protection of steel structures by protective paint systems
4. APPLICATION
4.1. Surface to be painted.
1) General
a) For the selection of painting system, the supplier shall take into account each material
to be painted, insulation, service temperature, etc. If necessary, the constructor who is
carrying out field coating shall execute touch-up painting for shop coating and field
application in accordance with painting standard.
b) All equipment for field weld surface, in case of not using a good weld ability paint,
shall be protected with masking tape or adhesive material within 75mm of field weld.
c) Machined surfaces, bolts, valve stems, gasket surfaces shall be protected with anti-
corrosive petroleum solvents in accordance with the manufacturer’s instruction.
2) Paint of fitting and flanges shall match that of piping.a) Field fabricated brackets, clips, nozzles, manways, attachments, flanged connections
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12) The abrasives used for blast-cleaning shall be graded flint, grit, shot or silica sand and
shall be such that they will produce and average keying profile on the blast-cleaned
surface of not more than 120 microns.
13) Saddles or other structure supporting equipment to be rotated during the paint process
shall be a minimum of 1meter in height.
14) No blast cleaning shall be performed during the rainy season. The blasted surface shall
be maintained free of frost or moisture.
15) The blast cleaning compressor shall provide moisture free air with adequate capacity. Oil
and moisture must be purged from compressor system prior to commencing blasting
after any compressor shutdown. Contaminant level is to be checked using a white-clean
cloth.
16) A power-operated wire brush which provides surface gloss shall not be used for cleaning.
17) Shop painted surface shall be protected during surface preparation.
18) All machined surfaces, including flange faces, shall be suitable covered to prevent
damage during surface preparation.
19) Masking tape from shop painting or other adhesive materials shall be removed
completely.
20) Steelwork protected by shop primer after arrival on site must be cleaned of salt, sand, oil,
etc. before the first coat of paint is applied on site. Shop primer damaged during
transport must be rectified by blast or brush cleaning, depending on the damage, and
coating before application of the site coats as bellows
Impurity Removal
Dust, loose deposits Vacuum-cleaning, brushing
Adhesive deposits Power brushing
Oils, greasy impurities Use of detergent additives by agreement
Salt deposits Rinsing
Damages, Burns, Weld
Smoke, Marking, Corroded
areas
Disc sanding to St 3 according to ISO 8501-1:1988 or
abrasive sweeping to Sa 2 1/2 According to ISO 8501-
2:1994.
White Rust Fresh water hosing and scrubbing with stiff brushes.
a) Surfaces to be coated must be dry and free of all dirt, mildew, chalk, spent abrasive
and any other contaminant of foreign material that could inhibit adhesion.
b) Shop coated surfaces shall be thoroughly cleaned before the application of the prime
coat
21) Should any phase not meet the standard required during inspection, Supplier shall carry
out necessary rectification in accordance with this specification
4.4. Painting
1) Painting work shall be performed when the substrate surface is in dry condition. All the
rust, sand, shot ball, grit, oil, grease shall be removed completely.
2) Where practical, outdoor exposed steel (except stainless steel) bolts, nuts and washers,
including general grade high tensile friction-grip bolts (referred to in B.S. 3139 and S.B.
4395, Part 1) shall be dichromated and subsequently centrifuged.
3) All carbon steel shall be treated in accordance with this specification.
4) No paint area such as machined surface (metal to metal contacted surface), bolt threads,
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etc shall be coated with rust preventive oil. (Tectyl 506 or equivalent)
5) Painting shall be commenced within 4 hours after surface preparation. If some sign of
rust might occur even within 4 hours, surfaces shall be prepared again in accordance
with the specification.
6) Painting shall be proceeded within the temperature limits specified by the manufacturer’s
recommendation. The general conditions are as follows:
a) Atmospheric temperature
- The optimum temperature range will be 15℃~32℃. In general, painting shall not
be proceeded below 10℃ or above 38℃.
- Painting shall not be carried out when the steel surface temperature is less than 3℃
above the dew point.
b) Humidity
- As the humidity during the painting give much effect on the dry time, the optimumhumidity for painting will be the range of 40-80%. Painting shall be done within the
humidity range of paint manufacturer’s recommendations.
c) Others
- Painting shall not be executed outdoors when weather conditions are unsuitable
(i.e. foggy, rainy and windy day). Indoor painting shall only be carried out with
supervisor’s permission.
- If chemical contamination occurs between coats, then water or solvent cleaning
shall be applied before re-coating.
7) Use of paint thinner shall be in strict accordance with paint manufacturer’s data sheets.
The thinners shall conform to the paint manufacturer’s recommendations.
8) Field welds on items which have been shop coated with inorganic zinc primer shall be
properly prepared before field touch up primer and finishing coats. Slag occurred in
welding work and slag residue shall be removed completely. Grinding or power tool
cleaning shall be executed to comply with SSPC_SP3.
9) Faying surface of bolted connection (high tension bolted areas) shall be masked to
prevent application of all but the qualified inorganic zinc rich primer. After bolting (high
tension bolted areas), these area shall be coated in accordance with the qualified coating
system.
10) Painting shall be carefully performed at all edges, corners, crevices, rivets, bolts and nuts,
welds and other complex shapes that may be sensitive to rusting. (stripe coating)
11) Dry film thickness (D.F.T)
a) To the maximum extent practical, the coats shall be applied as a continuous film of
uniform thickness and free of pores. Overspray, skips, runs, sags and drips shall be
avoided.
b) The different coats shall not be of the same colour.
c) The minimum total dry film thickness of the paint system shall be as recommended in
the following Coating system below. The D.F.T is given in microns (millionths of a
meter).
12) All parts shall be shop-painted including finishing coats as far as possible. Field painting
will be limited to touch-up repairs to shop finish coats damaged during erection, and fieldpreparation and painting of field weld areas.
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13) Insulated equipment and piping shall be painted with primary coat only on the equipment
surface subject to addressing Contractor’s comments on the Supplier’s painting
specification.
4.5. Protection of Stainless Steel
1) The sand blasting and coating shall not be applied on the surface of austenitic stainless
steel and high alloy steel.
2) Paint, dust, soil(mud clay) and foreign matter on the surfaces of austenitic stainless and
high alloy steel shall be removed with water first. Contaminant not removed by water
shall be cleaned by stainless steel brush. The surfaces of carbon steel shall not be
applied with the brush. Oil and grease shall be removed not by aliphatic or chlorinated
solvent but by clean rags and pure(unstained) aromatic solvent.
3) Before surface painting, the welding areas of austenitic stainless, high alloy steel and
carbon steel shall be protected as follows.
a) Large C.S attachment parts (C.S skirt welded to S.S vessel)
- Where the service temperature is lower than 149℃, epoxy type paint shall be
coated on each side of 300mm coverage at S.S and C.S welding parts.
- Where the service temperature is higher than 150℃, the modified silicone shall be
coated on each side 300mm coverage at S.S and C.S welding parts.
b) Small C.S attachment part (clips, brackets, flange welding etc.)
- Where the service temperature is lower than 149℃, two coats of epoxy type paint
shall be applied to cover the C.S completely.
- If the service temperature is higher than 150℃, two coats of modified silicone shall
be applied. Coating shall be over lapped at least 25mm on the surface of S.S
4.6. Galvanizing
1) Galvanizing works shall conform in all respect to ASTM A153 and B.S. 729, B.S. 3083
and B.S.C.P. 2008 and DIN 50976 and to KSD8308 whatever requires the higher quality
and shall be performed by the hot dip process, unless otherwise specified.
2) It is essential that details of steel members and assemblies which are to be hot-dip
galvanized shall be designed in accordance with B.S. 4479.
3) Vent-holes and drain-holes shall be provided to avoid high internal pressures and air-
locks during immersion, which may cause explosions, and to ensure that molten zinc is
not retained in pockets during withdrawal.
4) All defects of the steel surface including cracks, surface laminations, laps and folds shall
be removed in accordance with B.S. 4360. All drilling, cutting, welding, forming and final
fabrication of unit members and assemblies shall be completed, where feasible, before
the structures are galvanized. The surface of the steelwork to be galvanized shall be free
from paint, oil, grease and similar contaminants in accordance with DIN 55928, part 4
and DIN 50976. The weight of zinc coating per unit area has to be noted in the
manufacturing documents in accordance with DIN 50976.
5) The minimum average coating weight shall be as specified in Table 1 of B.S. 729 or
Table 2, DIN 50976, whatever requires higher quality, and the minimum thickness of
galvanizing shall be 4mils(100㎛).
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6) Structural steel item shall be initially grit-blasted to B.S. 4232, second quality (Sa 2 1/2),
or by pickling in a bath and the minimum average coating weight on steel section 5mm
thick and over shall be 900 g/m2.
7) Galvanized contact surfaces to be joined by high-tensile friction-grip bolts shall be
roughened before assembly so that the required slip factor (defined in B.S. 3294, Part 1
and B.S. 4604, Part 1) is achieved. Care shall be taken to ensure that the roughening is
confined to the area of the mating faces.
8) Protected slings must be used for off-loading and erection. Galvanized work which is to
be stored at the works or on site shall be stacked so as to provide adequate ventilation to
all surfaces to avoid wet storage staining (white rust)
9) Small areas of the galvanized coating damaged in any way shall be restored in
accordance with DIN 55928, part A and DIN 50976 by:
a) Cleaning the area of any weld slag rust and other impurities and by thorough wire
brushing to give a metallic clean surface.
b) Application of suitable number of coats of zinc rich paint containing more than 90%
w/w of zinc in dried film
c) The dry film thickness shall exceed at least as of the desired galvanization.
d) The restored area shall not to exceed 1% of the galvanized surface.
4.7. Touch-up Painting
1) The Supplier shall touch up before erection in jobsite all destroyed or damaged surfaces
during delivery.
2) Touch-up painting shall be with brush or airless spray after SSPC-SP3 cleaning. If the
touch up area is wide and blasting operation is possible, spray coating method shall be
applied after re-blasting.
3) The Supplier shall provide sufficient quantity of touch-up paint of the same types and
colors as applied for shop painting. The Supplier shall provide not less than 5% of total
paint quantity, unless otherwise specified.
a) Bare steel surface where the surface rusts
- Areas where surface temperature is below 93℃, and coated with inorganic zinc
rich primer
∙
Surface preparation : SSPC- SP2 or SP3
∙ Touch-up : Finish coating in accordance with Painting System after primer
coating with epoxy mastic aluminum 100μ DFT.
- Areas where surface temperature is between 94~399℃, and coated with
inorganic zinc rich primer.
∙
Surface preparation : SSPC-SP3
∙ Touch-up : Finish coating in accordance with Painting System after primer
coating with inorganic zinc rich primer 75μ DFT.
- Areas where surface temperature is between 400~600℃, and coated with silicone.
∙ Surface preparation : SSPC-SP3
∙
Primer and finish coats : Silicone more than 50μ DFT.- Areas coated with coal tar epoxy, polyamide epoxy, amine adduct epoxy, phenolic
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epoxy.
∙ Surface preparation : SSPC-SP3
∙
Primer and finish coatings shall be in accordance with Painting System. But, in
case of the paint which requires the time interval for repainting. Existing filmshall be overlapped with touch-up painting after re-blasting, sand papering, or
sand sweeping.
- Areas coated with Alkid water Reducible Primer
∙ Surface preparation : SSPC-SP2 or SSPC-SP3
∙
Touch-up : Finish coating in accordance with Painting System after primer
coating with Alkid water Reducible primer 40μ DFT.
- Areas coated with modified epoxy.
∙
Surface preparation : SSPC-SP3
∙
Primer and finish coatings shall be in accordance with Painting System. But, in
case of the paint which requires the time interval for repainting. Existing film
shall be overlapped with touch-up painting after re-blasting, sand papering, or
sand sweeping.
- Damage areas of primer, intermediate, top-coats where the steel surface does not
rust.
∙
Surface preparation : SSPC-SP1
∙
Touch-up : Finish coating in accordance with the Painting System, sufficient to
re-establish the specified dry film thickness.
5. TESTING & INSPECTION
1) Painting materials, equipment and working conditions shall be tested and inspected
according to the Supplier’s quality assurance procedures which shall be submitted for
OWNER’s approval.
2) The minimum check points for testing & inspection are as follows.
a) Paint
- Inspection of coating and blasting materials in accordance with materials
specifications
- Checking of storage conditions of materials
- Before Mixing and application of coating material, Check the following information
listed;
∙ Coating material supplier ’s name
∙ Product name
∙
Product color designation
∙ Product batch number and manufacturing date
∙
Product shelf life
b) Equipment for painting
- Checking adequateness of coating, cleaning and blasting equipment
c) Surface preparation
- Checking the condition in accordance with surface preparation specification
- Checking the accuracy of surface preparation in accordance with painting
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specification
- Confirm the blast quality by comparing the blasted surface with SSPC-Vis1 and
verify the height of the anchor pattern profile with an Elcometer roughness gauge
adjusted to profile height
- Inspect blasted surfaces immediately before application of the coating as follows
∙
Check dryness by visual inspection.
∙ Check rusting visually. If rusting is detected, surfaces shall be re-blasted until
acceptable.
d) Painting
- Checking the precision of mixing and screening of inorganic zinc rich primer
- Checking the adequateness of environmental condition for paint application
- Checking the continuous agitation of inorganic zinc rich paint container during
application
- Checking the pot life time of paint e) Film thickness
- Checking the wet film thickness of first coat for non-zinc rich primer
- Checking the dry film thickness for zinc rich primer
- Checking the finish coating of organic coating for making precise film thickness
- Checking the film thickness vs. specified film thickness
f) Visual Inspection
- Check continuously the following coating defects & take immediate corrective
action
- Orange peel
- Thin film
- Film Brush
- Over Spray
- Surface Contamination
- Mildew
- Slow Drying Time
- Mud Cracking
- Blisters
- Rust
g) Galvanizing
- Check appearance
∙
The appearance status after the coating will be confirmed with the visual sight
Galvanized surfaces shall be free from uncoated areas, blisters, flux deposits,
and Lumps, projections, globules, or heavy deposits of zinc which will interfere
with the intended use of the material will not be permitted.
- Check Thickness
∙ It will be measured with the Electronic Film Thickness Measuring Device. The
thickness of the coating shall be determined by magnetic thickness gage
measurements in accordance with SSPC-PA2.
h) Adhesion of paint
- Executing a surface inspection to check bonding between primer and finish
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coating.
- Checking the drying condition of primer before finish coating
i) Repairs
- Checking all the repair complete.
j) Drying
- Checking the drying condition in accordance with transportation, handling and re-
coating interval instructions (specifications) of paint manufacturer
3) The list of equipment for checking the painting procedure is as follows;
a) Surface profile roughness gauge
b) Air temperature gauge
c) Steel surface temperature gauge
d) Hygrometer & dew point calculator
e) Wet film thickness gauge
f) Dry film thickness gauge
g) Other related instruments
4) The surface preparation shall be checked properly in accordance with SSPC and this
specification
5) Wet film thickness of non-zinc rich paint shall be checked to make sure dry film thickness
during each application (first, second, third coating).
6) Dry film thickness of painted area shall be checked in accordance with SSPC-PA2.
7) Periodic checking shall be carried out for the area which might have adhesion problems
between each coatings.
8) Tester (elcometer adhesion) or higher qualified method shall be used to check the
adhesion condition for doubtful area.
9) Finished painting shall be checked by Contractor ’s visual inspections.
a) RE-coating or touch-up which did not follow this specification shall be performed
under the responsibility od the Supplier’s expense.
10) The Supplier shall submit an inspection report.
6. STORAGE OF PAINTS
1) Paint materials shall be stored in a well-ventilated area, free from spark, flame, heat and
direct rays of the sun. Containers for paint shall be turned regularly in accordance with
paint manufacturer’s recommendation.
2) Storage of paint shall be in compliance with the paint manufacturer’s recommendation.
7. SAFETY
1) Painting materials to be used for primer and intermediate, finish coating shall be the
product of the same manufacture. In special cases, other paint can be used after
Owner ’s approval through testing.
2) All painting materials shall be delivered to the field in sealed containers with testing
reports. All paint containers shall be labeled to show product name and mark of
manufacturer.3) Surface preparation, painting working conditions and painting materials shall be in
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accordance with the latest product data sheet published by the paint manufacturer in
addition to the requirements in this specification.
4) Painting shall be performed with the application of safe working methods considering the
health and safety workers and other personnel.
5) As painting materials include solvent and other chemical constituents, all prudent
precautions shall be taken to ensure the safety of personnel during storage, handling,
painting and drying.
6) Most paints contain flammable liquids and are thus a fire hazard. Equipment, lighters,
etc., eating a park or flame shall be kept away from working area. No smoking will be
allowed in working areas. All electric equipment shall be spark free.
7) Food preparation and eating place shall be separate from painting area.
8) When indoor coating is required, ventilation shall be provided to prevent workers from
inhaling vapors of solvent, dust and paints. Fan(s) shall be set up at lower section of
work area and ventilator shall be set up at upper section of work area.
9) Worker shall wear safety mask and face protector.
10) The foothold (or scaffold) shall be set up to insure worker safety and shall be checked
regularly. Safety net shall be provided protect worker.
11) Worker must wear face goggles during painting.
12) When handing painting materials for a long time, worker shall wear gloves, protection
cloth, face protector, food mask and goggles to prevent toxic effects. Protective creams
and lotions are often used on hands, arms and face. If worker’s skin is stained with paint,
clean the skin with adequate solvent and soap.
13) Adequate fire-fighting equipment shall be installed to protect against a fire in paintstorage place.
8. COATING SYSTEM
8.1. Application of Materials
1) Painting system for complete vendor product
a) The type and number of protective coating for complete vendor items which requires
corrosion protection shall be in accordance with the technical specification of maker
standard.
b) Final color of complete vendor product shall be applied in accordance with Customer
requirements. If final color is not requirement with Customer requirements, it shall beapplied in accordance with manufacturer’s Standard Color.
8.2. Painting System
No DescriptionSurface
Preparation
Application
RemarkNo
of
coat
Paint Type
Min.
D F T
(㎛)
Work
Scope
Surface Temp
( )
1Spray Dryer
Absorber(SDA)
Out
sideSP 10 1
st
Inorganic zinc
silicate primer75 Shop 75~134
Insulated
-Sherwin
Williams
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In
sideSP 10 1
st
Inorganic zinc
silicate primer30 Shop
Only for
Transportation
-Sherwin
Williams
2 Fabric Filter
Out
side SP 10 1st
Inorganic zinc
silicate primer 75 Shop
75(continuous.)
134(rarely)
Insulated
-SherwinWilliams
In
sideSP 10 1
st
Inorganic zinc
silicate primer30 Shop
Only for
transportation
-Sherwin
Williams
3
Recycle mix tank
Out
sideSP 10
1st
Inorganic Zinc
Silicate primer75 Shop
40~50 -Sherwin
Williams
2nd
H.B Polyamide
Epoxy75 Shop
3rd Polyurethane 75 Shop
In
sideSP 10 Glass Flake Lining Shop
Atomizer Feed
Tank
Out
sideSP 10
1st
Inorganic Zinc
Silicate primer75 Shop
40~50 -Sherwin
Williams 2
nd
H.B Polyamide
Epoxy75 Shop
3r Polyurethane 75 Shop
In
sideSP 10 Glass Flake Lining
Storage Tank
-Recycle slurry
storage tank
-Lime slurry
storage tank
Out
sideSP 10
1st
Inorganic Zinc
Silicate primer75 Shop
40~50 -Sherwin
Williams
2nd
H.B Polyamide
Epoxy75 Shop
3rd Polyurethane 75 Shop
Inside
SP 10 Glass Flake Lining After ErectionSite
Tank
-SDA make-up
water tank
Out
sideSP 10
1st
Inorganic Zinc
Silicate primer75 Shop
40~50 -Sherwin
Williams 2
nd
H.B Polyamide
Epoxy75 Shop
3rd Polyurethane 75 Shop
In
sideSP 10
1st
Inorganic Zinc
Silicate primer100 Shop
40~50 -Sherwin
Williams
2nd
H.B Polyamide
Epoxy100 Shop
3rd
H.B Polyamide
Epoxy100 Shop
4
Silo
-
Recycle
ash silo
-Lime
storage
silo
ShellOut
sideSP 10
1st Inorganic ZincSilicate primer 75 Shop
AMB
Not
Insulated
-Sherwin
Williams
2nd
H.B Polyamide
Epoxy75 Shop
3rd Polyurethane 75 Shop
Hopper
(cone)
Out
sideSP 10 1
st
Inorganic Zinc
Silicate primer75 Shop AMB
Insulated
-Sherwin
Williams
In
sideSP 10 1
st
Inorganic Zinc
Silicate primer30 Shop
Only for
transportation
-Sherwin
Williams
5 FGD DuctOut
side SP 10 1st
Inorganic Zinc
Silicate primer 75 Shop 75~134
Insulated
-SherwinWilliams
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In
sideSP 10 1
st
Inorganic Zinc
Silicate primer30 Shop
Only for
transportation
-Sherwin
Williams
6
Outdoor and Off shoreLocated Non metallic
surface
-Galvanized Steel
-Stainless Steel
-Copper, Bronze
-Aluminum, Nickel
No painting is needed AMB
7 Structural Steel
Out
doorSP 10
1st
Inorganic Zinc
Silicate primer75 Shop
AMB -SherwinWilliams
2nd
H.B Polyamide
Epoxy75 Shop
3rd Polyurethane 75 Shop
In
doorSP 10
1st
Inorganic Zinc
Silicate primer75 Shop
2nd
H.B Polyamide
Epoxy100 Shop
3rd Polyurethane 75 Shop
8
Structural Steel
- Handrail, Ladder
- Checked Plate
- Piping support
Out
sideSP 10
1st
Inorganic Zinc
Silicate primer75 Shop
AMB -Sherwin
Williams
2nd
H.B Polyamide
Epoxy75 Shop
3rd Polyurethane 75 Shop
Structural Steel
- Grating,- Stair Thread
Out
side SP 10
Galvanizing will be performed in accordance with ASTM A153,
BS 729, BS3083, DIN 50976, BS 4479, KSD8308 (Refer topara 4.6)
Piping
-slurry piping
Out
sideSP 10
1st
Inorganic Zinc
Silicate primer75 Shop
Up to 60
Not
Insulated
-Sherwin
Williams
2nd
H.B Polyamide
Epoxy75 Shop
3rd Polyurethane 75 Shop
Piping-Fly ash (Pneumatic)
Maker Standard (Shop Finish Painting)
Piping
-Service Air piping
-closed coolingwater piping
- Maker up water
piping
- Portable water
piping
Out
sideSP 10
Galvanizing will be performed in accordance with ASTM A153,
BS 729, BS3083, DIN 50976, BS 4479, KSD8308 (Refer to
para 4.6)
10
Agitator Maker Standard (Shop Finish Painting) AMB All motors are
applied.
Stainless or
Galvanized
steel is not
needed to
paint
Lime Slaker Maker Standard (Shop Finish Painting) 60~90
AtomizerMaker Standard (Shop Finish Painting) 81~134
Atomizer Cooling Air Fan Maker Standard (Shop Finish Painting) AMB
Water Pump Maker Standard (Shop Finish Painting) AMB
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Slurry Pump Maker Standard (Shop Finish Painting) AMB
Air compressor Maker Standard (Shop Finish Painting) AMB
Weighing hopper feeder
(Lime)
Maker Standard (Shop Finish Painting) AMB
Feed hopper
(Recycle ash)Maker Standard (Shop Finish Painting) AMB
Bin activator Maker Standard (Shop Finish Painting) AMB
Vibrating screen
(Lime slurry)Maker Standard (Shop Finish Painting) 0~90
Vibrating screen
(Recycle ash slurry)Maker Standard (Shop Finish Painting) 0~90
Jaw crusher Maker Standard (Shop Finish Painting) 0~77
Reversible conveyor Maker Standard (Shop Finish Painting) 0~77
Lump breaker Maker Standard (Shop Finish Painting) 0~77
Air dryer Maker Standard (Shop Finish Painting) AMB
Motor Maker Standard (Shop Finish Painting)
11 Air Receiver Tank
Out
sideSP 10
1st
Inorganic Zinc
Silicate primer75 Shop
Up to 130-Sherwin
Williams 2
nd
H.B Polyamide
Epoxy75 Shop
3rd Polyurethane 75 Shop
In
sideSP 10 1
st
Inorganic Zinc
Silicate primer30 Shop
-Sherwin
Williams
12 Ash handling Vessel Maker Standard (Shop Finish Painting) 20
13 Steam Heater Maker Standard (Shop Finish Painting) 150
14
Valve
-steam piping
Out
sideMaker Standard (Shop Finish Painting) Up to 400 Insulated
Valve
-slurry piping
-Service Air piping
-closed cooling
water piping
-Make up water
piping
-Portable water
piping
Out
sideMaker Standard (Shop Finish Painting) Up to 60
Not
Insulated
15 Panel
Out
door
Electric Powder Coating (Min.80㎛) 50
Stainless or
Galvanized
steel is not
needed to
paint
In
door
16 Junction Box
Out
door
N/A 60
Stainless or
Galvanized
steel is not
needed to
paint
In
door
17
Anchor Bolts &
Embedded
Materials
Out
door Galvanizing will be performed in accordance with ASTM
A153, BS 729, BS3083, DIN 50976, BS 4479, KSD8308
(Refer to para 4.6)
AMB
Stainless or
Galvanized
steel is not
needed to
paint
In
door
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18
Bolts & Embedded
Materials for Steel
Structure
Out
door
Dacrotized AMB
Stainless or
Galvanized
steel is not
needed to
paint
In
door
1) Note:1. Final color shall be applied in accordance with Customer requirements.(5.4, 5.5)
If it is not required, it shall be applied in accordance with manufacturer’s Standard Color.
8.3. Safety Color Code
The safety color code is based on ANSI Z535.1 and shall be as follows for the proposal.
The supplier shall be noted that these colors are subject to change in accordance withemployer/engineer ’s approval.
Safety Color Application
RedFire protection and emergency; shall be used for hydrants and associated piping, fire
fighting equipment and facilities, including emergency shutdown controls.
GreenSafety; shall be used for first aid and protective equipment and facilities, sealing
devices, valves, including safety bulletin boards, gas mask boxes, and first aid kits.
YellowCaution; shall be used to designate location of physical hazards which might cause
stumbling, falling, tripping.
Orange
Alert; shall be used inside of removable guards for pull-up, shafts, chains, etc., inside
enclosed doors for electrical equipment, etc. Stop valves associated with relief
valves, any valves which for safety reasons are locked open.
Black and Yellow Stripe
Danger; shall be used for dangerous curbs, bottom risers, lap landings of stairways,
exposed and unguarded edges of platforms and walks, lower pulley blocks of cranes,
bumpers of fork lift trucks and cranes, pillar posts and columns in areas hazardous to
personnel (painted up to 2 meters above deck), and dead end passage ways.
Blue Information; shall be used for informational signs and bulletin boards.
8.4. Final Painting
This specification states final painting colors, which are based on the RAL numbers as aContractor’s standard, for equipment provided by Seller.
8.4.1. Standard Colors of Equipment Painting
Item
No.Description Color RAL Code Remarks
1.
General indoor equipment, such as STG,
condenser, pumps, etc Signal White RAL 9003Except Atomizer
2.General outdoor equipment, such as boiler,
pumps, vessels, etcSignal White RAL 9003
3 Desulfurization System Structure Saphire Blue RAL 5003
4.Crane bridges, monorail, trolleys, hoist, etc.,
and other mobile equipmentSignal Yellow RAL 1003
5. Tanks/Silos Signal White RAL 9003
Band (RAL)
- Lime : 1021/4001
- Recycle Ash :
1021/3001
6. Chimney (Stack) Traffic Red /Pure White
RAL 3020 /RAL 9010
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Item
No.Description Color RAL Code Remarks
7. Grating and tread of platforms and stairways Galvanized -
8.Checkered plates (steel floor), Galleries,
stairways, kick steps, ladder etc.Signal White RAL 9003
Checked plate
for SDA, Duct,
Silo, Tank Item
9. Railings for floor, plate, stair Signal Yellow RAL 1003
10.Fire-fighting equipment namely, piping &
fittings, and valvesSignal Red RAL 3001
11.Local control panel for mech. equipment
(indoor)Pebble Grey RAL 7032
12.Local control panel for mech. equipment
(outdoor)
Pebble Grey RAL 7032
13. Electrical equipment (indoor) Pebble Grey RAL 7032Except Atomizer
Cooling Air Fan
14. Electrical equipment (outdoor) Pebble Grey RAL 7032
15. Power transformer (external) Pebble Grey RAL 7032
16. Isolated phase busduct Pebble Grey RAL 7032
17. Segregated phase busduct Pebble Grey RAL 7032
18. Control panel (indoor) Pebble Grey RAL 7032 note
19. Control panel (outdoor) Pebble Grey RAL 7032 note
20. Instrument cabinet/rack/terminal box Pebble Grey RAL 7032
21. Control Valve & Manual Valve Pebble Grey RAL 7032
22. Penthouse(SDA, Fabric filter)Signal White
or Light Ivory
RAL 9003
or RAL 1015
23. All safety purposes As per safety
color code
24 Vessel (Ash handling) Signal blue RAL 5005
25 Jaw crusher (Ash handling)Maker
Standard
Maker
Standard
26 Reversible conveyor (Ash handling)Maker
Standard
Maker
Standard
27 Lump breaker (Ash handling)Maker
Standard
Maker
Standard
28 Lime Slaker MakerStandard
MakerStandard
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Item
No.Description Color RAL Code Remarks
29Vibrating screen
(Lime slurry)
Maker
Standard
Maker
Standard
30Vibrating screen
(Recycle ash slurry)
Maker
Standard
Maker
Standard
31 Air CompressorMaker
Standard
Maker
Standard
32 Air Receiver Tank Signal blue RAL 5005
RAL
3001/5005/3001
Band
33 Air DryerMaker
Standard
Maker
Standard
34 AgitatorMaker
Standard
Maker
Standard
35Weighing hopper feeder
(Lime)
Maker
Standard
Maker
Standard
36Feed hopper
(Recycle ash)
Maker
Standard
Maker
Standard
37 Bin activatorMaker
Standard
Maker
Standard
38 Truck ScaleMaker
Standard
Maker
Standard
39 Slurry PumpMaker
Standard
Maker
Standard
40 Water Pump Emerald green RAL 6001RAL 4001/2003
Band
41Vent filter
(Fly Ash Silo)
Maker
Standard
Maker
StandardMaker Standard
42Vent filter
(Recycle Ash Silo)
Maker
Standard
Maker
StandardMaker Standard
43 Pug MillMaker
Standard
Maker
StandardMaker Standard
1) Note : The color code of the control panels shall be determined at the owner’s review of
the packaged control system.
8.5. Piping Color Code
8.5.1. General
1) Piping materials shall be identified and color coded in accordance with ANSI A13.1. All
electrical conduits shall be identified using acceptable industry practice.
8.5.2. The product color code system shall consist of the following;
1) A colored band around pipe to indicate classification of product
2) Black lettering and black directional arrow to indicate flow direction between colored
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bands to identify the specific product within the general classification
8.5.3. Color code
1) Final colors shall be as given below. In case of galvanized, stainless steel and heat
isolated pipe, only color band shall be applied instead of painting. The color band shall
be painted around pipe..The banding color code shall be in accordance with the following:
Service/FluidPipe
MaterialColor RAL Code Legend Remarks
Closed cooling water Carbon SteelBase – Emerald green
Band - Beige
RAL 6001
RAL 1001CW Galv.
Water Supply Carbon Steel
Base – Emerald green
Band -
Red lilac/Pastel orange
RAL 6001
RAL 4001/2003RW Galv.
Potable Water Carbon SteelBase – Emerald green
Band - Emerald green
RAL 6001
RAL 6001PW Galv.
Lime Powder Carbon Steel
Base – Signal blue
Band - Rape Yellow/ Red lilac
RAL 5005RAL 1021/4001
Lime Slurry Carbon Steel
Base - Emerald green
Band - Rape Yellow/ Red lilac
RAL 6001
RAL 1021/4001LS
Recycle Ash Powder Carbon Steel
Base – Signal blue
Band - Signal
red/Silver grey
RAL 5005
RAL 3001/7001RA
Recycle Ash Slurry Carbon Steel
Base - Emerald green
Band - Rape Yellow/ Signal
red
RAL 6001
RAL 1021/3001RS
Service Air Carbon SteelBase – Signal blue
Band - Signal red
RAL 5005
RAL 3001SA Galv.
Instrument Air Stainless SteelBase - Signal blueBand - Signal red /Signal
blue/ Signal red
RAL 5005RAL
3001/5005/3001
IA
Air to Ashes Carbon SteelBase – Signal blue
Band - Signal red
RAL 5005
RAL 3001SA Galv.
Fly ash (Pneumatic) Carbon Steel Maker Standard Maker Standard
Pipe Support SS400 Base - Signal White RAL 9003 -
8.5.4. Directional Arrow
1) The flow direction shall be indicated by black paint.
The arrow thickness at its widest point shall be equal to the letter height..
8.5.5. Legend
1) Legend shall be brief, informative, pointed, and simple in full or abbreviated form.
Language shall be sued in English.
Letter height shall be in accordance with the following
Outside diameter (pipe, jacket, insulation) Letter height
mm
40mm to 60mm 20
>60mm to 170mm 45
>170mm to 270mm 65
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Outside diameter (pipe, jacket, insulation) Letter height
mm
>270mm to 90
8.5.6. Location of Color Bands
1) Pipes
a) Color bands shall be applied to pipe immediately inside and outside of buildings,
adjacent to and on both sides of walls or partitions, and in other location as necessary
to further identify systems and maintain uniformity.
b) Band shall be applied as following spacing
Pipe Size(DN) Band Spacing(m)
Up to 50 4
65 to 150 7
Over 200 10
2) Vessels and Tanks
a) Markings shall normally be applied at the tank centerline but not more than 1.5m (5
feet) up from the base. Markings will normally face any entrance to the vessel area.
8.5.7. Color Code Sketch for Piping System (Example)
1) Identification band, legend and directional arrow
a) In case of galvanized and stainless steel, heat isolated;
- Isolation cladding – Base color – Band color – Base color – Isolation cladding
- Base color shall be painted upstream and downstream of a band but limited to
between isolation claddings only..
- Cladding shall be located to separate painted surface from unpainted surface.b) As indicated on each pipe at suitable position as following figure:
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FIGURE 1. Galvanized and stainless steel, heat isolated pipe
FIGURE 2. Ordinary pipe
2) Identification Band
Outside diameter (pipe, jacket, insulation) Identification bandmm
Arrow lengthmm
0 to 50 mm 50 100
+50mm to 150 mm 100 150
+150mm 200 200
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